NOTICE ADVISORY TO NAVSTAR USERS (NANU) #007-92022
SUBJ: FORECAST OUTAGE PRN21 DAY 022/0145 UTC FOR UP TO 7 HOURS
REF: NANU OO5-92021 HAS BEEN EXTENDED
1. CONDITION: PRN21 (SVN21) IS EXPECTED TO BE UNUSABLE ON DAY
022 (22 JAN 92) BEGINNING 0145 UTC FOR UP TO 7 HOURS DUE TO
SCHEDULED MAINTENANCE.
2. USERS OF GPS ARE CAUTIONED THAT THE SYSTEM IS NOT YET FULLY
OPERATIONAL. SIGNAL AVAILABILITY AND ACCURACY ARE SUBJECT TO CHANQE
DUE TO AN INCOMPLETE CONSTELLATION AND OPERATIONAL TEST ACTIVITIES.
3. POC: LT WINGATE AT (719) 550-6379 OR DSN 560-6379.